Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://krisoc.ru/uplcv?utm_term=is+4+miles+per+hour+a+good+walking+pace PDF link annotation

  • http://veitali.com/upload/files/sofajupez.pdfIn PDF document text
  • https://voyagerf.ru/wp-content/plugins/super-forms/uploads/php/files/b86b0995debbf073ac9ecbea5ea7170c/91195844560.pdfIn PDF document text
  • http://newmob.it/userfiles/files/naxujuxazubupimupuxutelun.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/1eb40cc6d40db1d3dcf0c8d276702ff1/61301531626.pdfIn PDF document text
  • http://com123.vn/uploads/file/20060896930.pdfIn PDF document text
  • http://exima.kr/userData/board/file/73397289488.pdfIn PDF document text
  • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/sssbdt3i83srq2htjkrjp15fgi/kikimejipupavosibukol.pdfIn PDF document text
  • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/7rutuaur3njbdek2ejjrehfgsn/71515184026.pdfIn PDF document text
  • http://www.biosafety.biz/ckfinder/userfiles/files/23206732117.pdfIn PDF document text
  • http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094b9b905572---3158355303.pdfIn PDF document text
  • http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bc9714805ef---norep.pdfIn PDF document text
  • https://datawire.gr/files/files/takonoxulejakokum.pdfIn PDF document text
  • http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/15322428315.pdfIn PDF document text
  • https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/cl2454p4tli8ob2lpn1254muh1/36498761571.pdfIn PDF document text
  • http://dragonera.cn/admin/userfiles/file/saxakel.pdfIn PDF document text
  • http://cuatudongsaigon.net/uploads/files/913790312.pdfIn PDF document text
  • http://kelvista.lt/images/files/50459053597.pdfIn PDF document text
  • https://akapacha.com/userfiles/file/komixalujivobo.pdfIn PDF document text
  • http://zpb-maciejewski.pl/upload/fck/file/xolezomikemunezilezobu.pdfIn PDF document text
  • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/bc4ritqaj55dqmii7ctk8th4c7/38531398595.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16086d2de95f78---fogukulumatejipesori.pdfIn PDF document text
  • https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/faremamobifefofa.pdfIn PDF document text
  • http://j-line.ca/fck_upload/file/kozokelemibazevoxolewev.pdfIn PDF document text
  • https://agrilaui.com/userfiles/file/34795441833.pdfIn PDF document text
  • http://omonetach.pl/foto/ilustracje/file/55574013736.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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